Water Quality in YORK, PA (17401)

EPA violation data for public water systems serving ZIP code 17401.

116

Total Violations

26

Health-Based

90

Monitoring / Reporting

115

Resolved

What does this mean?

115 of 116 violations have been resolved. 26 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 90 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 13 Population served: 215,027

Violations Detail (116 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 10, 2025ActiveN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/AJun 30, 2025ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(14)

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Revised Total Coliform Rule

4B

Jul 10Active

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

2024(4)

CARBON, TOTAL

27

Jun 30Resolved

CARBON, TOTAL

27

Jun 30Resolved

CARBON, TOTAL

27

Jun 30Resolved

CARBON, TOTAL

27

Jun 30Resolved

How Does This Compare?

YORK (17401) has 116 recorded violations, including 26 health-based. 1 remains unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Nearby ZIP Codes

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